package com.person.config;


import com.fasterxml.jackson.databind.ObjectMapper;
import com.person.common.JacksonObjectMapper;
import lombok.extern.slf4j.Slf4j;
import org.springframework.context.annotation.Configuration;
import org.springframework.http.converter.HttpMessageConverter;
import org.springframework.http.converter.cbor.MappingJackson2CborHttpMessageConverter;
import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.ViewControllerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurationSupport;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

import java.util.List;

@Slf4j
@Configuration
public class WebConfig extends WebMvcConfigurationSupport {


//    /  设置静态资源映射


    @Override
    public void addResourceHandlers(ResourceHandlerRegistry registry) {
        log.info("开始进行静态资源映射");
        registry.addResourceHandler("/backend/**").addResourceLocations("classpath:/backend/");
        registry.addResourceHandler("/front/**").addResourceLocations("classpath:/front/");
        registry.addResourceHandler("/static/**").addResourceLocations("classpath:/static/");
        super.addResourceHandlers(registry);
    }
    /**
     * 扩展mvc消息转换器
     */
    @Override
    protected void extendMessageConverters(List<HttpMessageConverter<?>> converters) {
        //创建新的消息转换器
        //作用：将controller层返回的结果转换成相对应的json格式
        MappingJackson2HttpMessageConverter converter=new MappingJackson2HttpMessageConverter();
        //设置对象转换器，底层使用jackjson将Java对象转换成json
        converter.setObjectMapper(new JacksonObjectMapper());

        //将上面的消息转换器，追加到mvc框架的转换器集合中,0表示顺序，优先使用
        converters.add(0,converter);
        super.extendMessageConverters(converters);
    }
}
